Car-brake



(No Model.)

R. R. 111GB;

3 Sheets-Sheet 1.

GAR BRAKE.

, .Q A 2m Patented Aug. 1 0, 1886.

venan XM w@ N. PETERSA Phma-Lixhogwpher. wamlngwn. DA c.

`(No Model.)

. 3 sheetssheet 2.

R. R. HICE.

GAR BRAKE.

Nol 347,039. Patented' AugflO, 1886.

' N4 vains nwmumasnv '.3 sheetssheen -3.'

(No Mode1.)

R. 3.x H103.

GAR BRAKE.

Patented Aug. 10, 1886. F|G.|v

FIG.VII

t y UNITED n STATES PATENT Ormea..

RICHARD R. HICE, OF BEAVER, PENNSYLVANIA, ASSIGNOR TO THE ROTE AUTOMATICBRAKE COMPANY, OF MANSFIELD, OHIO.

CAR-BRAKE.

SPECPICATON forming part of Letters Patent No. 347.039. dated August 10-1886- Appncation 'filed Apr-n 21; ieee.

To @ZZ whom it may concern:

Be it known that LRiounnioY R. HIcE, of Beaver, county of Beaver, andState of Pennsylvania, have invented a new and useful Improvement inAutomatic Car-Brakes,of which the following is a full, clear, and eXactdescription, reference being' had to the accompany' car or trainistraveling slowly the inward and outward movements of the draw-bar shallhave no effect upon the brakes, yvhile when the car attains an ordinarydegree of speed the said movements of the draw-bar. shall serve toautomatically apply the brakes.

The object of this invention is to produce an automatic car-brake inwhich the connections interposed between the draw-bar and the governorshall be simple and durable in construction, and at the same time directand positive in action; also, to produce an automatic car-brake, thegovernor of whichshall be very simple and positive in its action andreadily applied to or disconnected from an ordinary truck-axle.Furthermore, to produce 'an vautomatic car-brake in which the powerdeveloped by the effective movement of the draw-bar shall be quicklyapplied to the brakeshoes without loss of either motion or force, andinvwhich the recovery of the various connections between the draw-barand the brakebeam consequent upon a release of the brakes shall beprompt and free from any slackening of the brake-chains.

To the above purposes the invention consists, first, in the combination,with an in- Y' Serial No. 200,322. (No model.)

connections for rendering the movements of Athe draw-bar effective ornon-effective, as hereinafter described and claimed.

The invention further consists in the ccmbination, with apeculiarly-constructed stoplever arranged to engage and disengage an armor lever upon the movable draw-bar, of

a pendent pivoted lever engaged at its lower erative, as hereinafterdescribed and claimed.

The invention further consists in the combination, with the stop-leverand the pendent lever before mentioned, of a second pendent leverweighted at its upper end and engaging at its lower end a centrifugalgovernor upon the truck-axle,and a pivoted dog in constant engagementwith said second lever, which, when moved by the latter, shall hold thestoplever out of engagement with the draw-bar arm and also release saidstop-lever t'o allow the same to assume its operative position relativeto the draw-bar arm.

The invention still further consists in the peculiar and novelconstruction and arrangement of the centrifugal governor, and in thepeculiar and novel construction and arrangement of the brake-lever andits connections to the draw-bar lever, all as hereinafter described andclaimed.

In order that the invention may be fully understood,it will be nowdescribed with reference to the accompanying drawings, in which-- FigureI is an upper side plan view of a carframe with the improvementsapplied. Fig. II is an under side plan view of the same. Fig. III isavertical longitudinal section of the car-frame and its truck with theimprovements applied thereto, the section being taken on the line 3 3 ofFig. I. Fig.'IV is a vertical transverse section of the same on the line4 4 of Fig. I. Fig.V is a detached view of the governor in operativeposition upon the truckaxle. Fig. VI is a detached view of the dog, andFig. VII a similar View of the stop-lever.

In the said drawings, Adesignates the drawbar or buffer, which isarranged to move in- ICO TOS

wardly and outwardly in asuitable casing or housing upon the car-frame,and preferably against the action of a buffer-spring, a, in the usualmanner.

B designates an arm or lever,which is pivoted at b upon the under sideof the draw-bar A, and which extends transversely of the earbody, asshown. The outer end of this lever is forked or bifureated at b toembrace an elongated U-shaped hanger or guide, C, which is suitablysecured beneath the body-frame of the car, as shown. This guide orhanger extends longitudinally of the car-body, and the end b oflevcr l,working on said hanger,is engaged at times by a stop-lever, to behereinafter described. The inner end of lever lextcnds beyond thedraw-bar head and is U- shaped, as shown at bf. Vithin or between thearms of the inner end of lever B lies the inner end of a lever, E, theouter end of which is connected by a chain, F, with the brakelever,hereinafter described. This lever E is pivoted at c upon a bracket, D,which is secured to the front end of the body-frame and near to thedraw-bar. flivoted at l(Lupen one ofthe vouter longitrulinal beams ofthe bodyframe, is a stop-lever, G, which extends longitudinally of theear-body, and upon the under side of the outer end of which is formed adownwardly-extendin g stud or stop, (j, which, when the outer end ofsaid lever is depressed, engages the outer end of lever l5. Thus it willbe seen that when the outer end of the arm or lever l1 is engaged by thestop-lever G the inward movement of the draw-barA will cause the innerend of lever B to act powerfully upon the contiguous end of lever E, andthat the latter acting pivotally will draw powerfully outwardly at itsouter end on the brakechain F and apply the brakes. On the other hand,when the outer end of lever B is notengagcd by the stop-lever, anyinward or outward movement of the draw-bar A will canse said lever tomove freely on its pivot 7), the tension of the brake mechanismrendering lever E sufficiently rigid to resist any movement and serve atits inner end as the fnlerum for the free movement of lever I).

The inner end of'the stop-lever G is T-shaped,haviugtwooppositelyexteudingarms, y', and at the outer extremityof each of these arms is formed or secured an inwardly-extending pin,ff, the T-shaped end of thi-s stop-lever extending inwardly beyond thepivotal point g of said lever.

ll designates an arm or bracket, which is secured at one end to one ofthe transverse timbers ofthe truck, and which extends horizontallyoutward `from said point of attachment. The outer end of this arm H isenlarged, as shown at 7l, and this enlarged portion is formed with adownward extension, 71,', an upward L-shaped extension, 712, and anoutward horizontal extension, 7N.

Upon the downward extension his pivoted, at fi, a lever, I, the upperend of which extends between the pins gi of the stop-lever G.

The lower end of this lever I extends downwardly toward and sufficientlynear to the truck-axle to be engaged at times by the governor, ashereinafter described.

To the forward extension, 7L, of the arm H is pivoted, at j, a lever, J,the upper end of which is weighted, as shown atj, and the lower end ofwhich depends toward and sufficiently near to the truck-axle to beengaged at times by the governor thereon. Upon the upward extension, 7L,is pivotcd, at 7.', a dog, IK, which is of substantially the 'form shownin Fig. (5. This dog is formed with an extension, 7.1', projecting inalignment with the greatest length of the body portion of the dog, andalso two extensions, 7617;,projeeting transversely to the length of thebodyportion of said dog and just beyond its pivotal poi ut. At eachextremity of the arms 7.1: is formed or secured a pin, 7a', and byreferring to Fig. 3 it will be seen that the upper weighted end of thelever .l extends between the said pins 7.4. Immediately beneath theextension l." the dog K is formed with a notch, 7.?, and from this notchor shoulder the lower edge of the dog is curved, as shown at 7;".

Upon the contiguous axle of the truck is mounted thecentrifugally-aeting governor L, which consists of a U-Shaped castinghaving two arms, Z41 7, the arm l being heavier than the arm 7. Thisgovernor is pivoted at 7l upon a split ring or collar, Z, each cud ofwhich is formed with a lug, 7, through which the pivot Z2 passes, saidpivot serving not only as the means for adjusting the governor L, butalso as the means for drawing the end of the ring or collar l snuglytogether, and thus securely attaching said ring or collar to the axle.This governor is so placed upon the tru ck-axle that its lighter end 7lies below the lower end of the lever l, while its heavier end liesbelow the weighted lever J, and it will be readily secu that when theear is moving slowly-for instance, just after the train has started-thelighter end 7 of the governor will, as the axle revolves and brings thegovernor uppermost, strike the lower end of lever I and throw the uppereud of said lever in one or the opposite direction, according as thetrain is going ahead or backing, and thus raise the outer end of stop^lever G- out of engagement with the lever B, so that the inward oroutward movement of the draw-bar will not affect the brakes. At thismoment the dog K will drop by gravity, the lower pin, g", of stop-leverG being caught in the notch 7S of the dog, and thus the stop-lever Gwill be locked or held with its outer end raised. Now, when the car ortrain has attained its usual speed, the heavier end of the governor Lwill be thrown outward by the rapid revolution of the axle and willstrike the lower end of lever J, throwing its upper end forcibly againstone or the other pin, 7H, aeeording to the direction of movement of thecar or train, and tripping the dog ont of engagement with the stopfj" ofthe lever G and allowing the outer end of said lever to fall by gravity,so that its stud g3 shall engage the arm or lever B upon the .nextinward movement of the draw-bar A, and consequently causing suchmovement to apply the brakes. The brakes being applied andthe speed ofthe car or train being reduced, the heavier end of the governor willfall when the governor is brought abovethe axle, and its lighter endwill tilt the lever I, and consequently release the brakes.

In Fig. 3 is shown a form of brake-lever which is peculiarly adapted foruse in connection with the member E of the pair of -interlocking levers,above described, inasmuch as when the lever B causes the brakes to bereleased this brake-lever will instantly takel up the slack'. in thebrake-chain. M designates the brake-lever, the lower part of which isconnected by a rod, F', with a companion lever, M', of the usual or anypreferred form. The upper part of this lever M has its upper extremitybent over angularly, as shown atm, and is preferably bent in curvedform,while at its lower end said lever is preferably weighted, as shownat m. A pulley, N, is journaled in a strap, n, which embraces the leverM, and to which is connected the brake-chain F, before referred to asconnected at its opposite end tothe free end of lever E. Thus when thelever. B is engaged by the stop-leverG and the draw-bar moves inwardlythe strain upon chain F will cause the pulley N to impart anl initialpressure of the brake-shoes uponfthe truck-wheels and immediatelythereafter to run upward upon the lever M and apply a powerful pressureupon the brake.- shoes. As soon as lever-B is released, as beforedescribed, this pulley N will run down upon lever M, and in so doing asthe said lever moves outward from the wheels instantly take up the slackof the brake-chain F.

Thus it willbe seen that the entire brake mechanism is of thesimplestconstruction and of the utmost durability, and that it quicklyv respondsto the varying requirements incident to actual use.

Having now described the invention, what is claimed as new and desiredto be secured by Letters Patent isl. In an automatic car-brake of thekind above specified, a pair of interlocking levers connected pivotallywith a longitudinally- 'movable draw-bar, one of said levers beingconnected directly to a brake-lever and the other lever being renderedfixed or freely movable by suitable connections from the truckaxle,substantially as described.

2. In an automatic car-brake'of the kind above specified, an arm orlever pivotally connected to the drawbar, and a stop-lever engaging anddisengaging said arm or lever to render the same fixed or freelymovable, in combination with a pivoted pendent lever in constantengagement with the draw-bar arm or lever, and a centrifugally-actinggovernor arranged to trip said pendent lever and thereinto engagementwith the dog, and a centrifugal governor engaging said lever inconsequence of varying speeds of rotation of the axle, substantially asspecified.

4. The combination, with a pair of pivoted levers interlocking at theircontiguous ends,

and a longitudinally-movable draw-bar operating upon said levers, of astop-lever arranged to-resist the inward thrust of the drawbar, andabrake-lever having a longitudinallymoving pulley connected by thebrake-chain to the opposite member of the said interlockin'g levers, asset forth.

5. The combination, with the longitudinallymovable draw-bar, of thelever B, piv oted upon said draw-'bar and having its inner endbifurcated, and the lever E, pivoted upon the carframe, said'leversbeing respectively in engagement with a stop-lever and connected to abrake-lever, whereby the inward movement of the draw-bar shall cause thelever B to become xed at its outer end and apply the brakes through themedium of lever E, substantially as described.

6. The combination, with thepivoted stoplever G, having the stud g3 and.pins g2, of the pivoted lever H, extending between said pins andoperating to raise the outer end of the stop-lever by a movement of itsupper end and in either direction, substantially as described.

7. rlhe combination, with the pivoted stoplever G, having the pins g2,and the lever I, extending at its upper end between said pins, of thedog K, pivoted upon the truck-frame and having the arms k2 k3, with pinsk4 and notch k7, and the weighted lever J, extending at its upper endbetween the pins la, said levers I and J being pivoted on thetruck-frame and in contact'at their lower ends with the arms of agovernor on the axle, as setforth. 8. rIhe governor having the pivotedU- shaped piece with its operative arms of relatively greater and lessweight, in combination with levers I and J, acted upon by said arms,substantially as described.

ICO

IIO

- 9. The bracket H, having extensions h', h2, I

Witnesses:

WINFIELD S. MOORE, J oHN M. SCOTT.

